My name is Kristjan Greenewald; I am a Senior Research Scientist and Manager at the
MIT-IBM Watson AI Lab in Cambridge Massachusetts, a joint lab between IBM Research and MIT.
Contact
Email: kristjan "dot" h "dot" greenewald "at" ibm "dot" com
Address:
- MIT-IBM Watson AI Lab
- IBM Research
- 314 Main St
- Cambridge MA
Research Interests
I work on generative AI (primarily LLMs), and am excited by making AI more reliable and robust, enabling an increasing level of real-world autonomy for machines. Recent directions include large language model alignment and post-training, and fast and reliable LLM adapter architectures for agents.
Keywords: Large language models, uncertainty quantification, language model alignment/RL, optimal transport, causal inference, signal processing. .
Bio
Kristjan Greenewald is a Senior Research Scientist and Manager at the MIT-IBM Watson AI Lab (IBM Research). Dr. Greenewald received his PhD in Signal Processing at the University of Michigan in 2017, and was a postdoctoral research fellow at the Harvard University Statistics department prior to joining IBM Research.
At IBM Research, he leads a team focused on fundamental AI/LLM research collaborating with MIT as part of the MIT-IBM Watson AI Lab. He has served as principal investigator for many multi-year research grants with MIT, and has produced numerous publications in top AI conferences and journals. Recent areas include robust RLHF and evaluation of LLM alignment with theoretical guarantees, uncertainty quantification for LLMs, differential privacy for synthetic data generation, and agentic
workflows for democratizing causal inference tools.